I think we should have "Species Badges" based on the number you make. I am not sure about the gold, silver, bronze part but you get the idea.
Tin Species Badge - 25 Total Species
Copper Species Badge - 50 Total Species
Bronze Species Badge - 100 Total Species
Iron Species Badge - 200 Total Species
Silver Species Badge - 500 Total Species
Gold Species Badge - 1000 Total Species
Platinum Species Badge - 2000 Total Species
Diamond Species Badge - 5000 Total Species
And the way to tell how many total you have is on here
. There are 200 per page and then if its not a total of 200 it lists how many are on the page.
BTW I have around 750 species So I would be on my way to Gold.